JunoCam projection code aimed at mosaicing |
JunoCam projection code aimed at mosaicing |
Dec 15 2021, 08:08 PM
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#1
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Newbie Group: Members Posts: 4 Joined: 19-November 21 Member No.: 9121 |
Hello!
I wanted to share a code that I've been working on to project and mosaic JunoCam images. The code is written in Python and uses the SPICE library: https://github.com/ramanakumars/JunoCamProjection. I thought people in this forum might be interested in using it or comparing with existing pipelines. The goal of this code is to generate mosaics by stacking multiple images for a given perijove pass with little manual labor. An example of both the projection and the mosaicing process is in the examples folder. Here is an example of a mosaic from PJ27 data: Ramana |
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Dec 16 2021, 08:06 PM
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#2
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Newbie Group: Members Posts: 4 Joined: 19-November 21 Member No.: 9121 |
Thank you!!
QUOTE Though the color is a little too heavy on the blue, I am not sure if it is the program or the raw images causing that. Yeah, that is an artifact of the color correction and histogram equalization. The code outputs a "raw" mosaic which goes through a color correction function. I think it should be possible to get better representations by post-processing the raw image directly rather than getting the output from the color correction step. I use the color correction function to de-haze the mosaic since I'm interested in uniform image representations across multiple perijoves, so my use case tends to be less aesthetic. QUOTE Seems like you have a lot of blending artifacts in the mosaic, only to be expected. Yes, and it's much more noticeable near the poles. I've been trying to figure out a way out of this. I fixed a lot of the artifacts a while ago by doing jitter correction (by fitting the limb of Jupiter in each image to find the start time offset). That might not be accurate enough for polar latitudes. I also think it's due to the changing resolution with latitude... I don't have a clear fix for that right now, except for doing lower resolution reconstruction. |
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